Riello 46662X Installation, Use And Maintenance Instructions page 35

5
Preparation for start up
5.1 Combustion head setting
Loosen the screw 3)and rotate indexed sector 1) to lock it on the desired notch number 2).
Table (B) shows the optimum adjustment of the combustion head for the burner output.
Notches no.
da
0 3000
1 5100
2 5550
3 6100
4 6500
5 6750
6 6750
7 6750
8 6750
10 6750
5.2 Ignition pilot
For correct working, set the gas pressure (measured on the valve test point) at 30 ÷ 50 mbar.
The distance of the electrode from the hole must be 2 ÷ 3 mm, as shown in figure.
Important
Before the ignition of the main burner, check the pilot flame stability.
D2968
Output kW
DB9
a
5100
5550
6100
6500
6750
6900
6900
6900
6900
6900
D3899
Fig. 14
Fig. 15
13